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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Cypress Semiconductor Corp CY62147EV30LL-45BVXA

Name: CY62147EV30LL-45BVXA
Brand: Cypress Semiconductor Corp
SKU: CY62147EV30LL-45BVXA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY62147EV30LL-45BVXA

Manufacturer:: Cypress Semiconductor Corp

Category:: Memory

Package:: 48-VFBGA

Datasheet:: CY62147EV30LL-45BVXA.pdf

Description:: IC SRAM 4MBIT PARALLEL 48VFBGA

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Product details

Overview

CY62147EV30LL-45BVXA from Infineon Technologies is a 2-Mbit (256K × 8) low-power CMOS static RAM with 3.3 V supply, 45 ns access time, and industrial temperature range (–40°C to +85°C). It features automatic power-down mode, TTL-compatible inputs/outputs, and is used in networking equipment buffers, industrial PLC data storage, and real-time embedded control memory.

For engineers reviewing the CY62147EV30LL-45BVXA datasheet, CY62147EV30LL-45BVXA pinout, CY62147EV30LL-45BVXA application, or CY62147EV30LL-45BVXA equivalent, key selection criteria include access time vs. standby current trade-off, byte-wide parallel interface compatibility, and industrial-grade reliability for non-volatile backup buffer designs.

Technical Context

This asynchronous SRAM operates without clock or timing control logic-address and control signals directly govern read/write cycles. Its dual V_CC and V_SS pins support clean power separation, and the /CE (chip enable) and /OE (output enable) pins allow hierarchical memory banking in multi-chip systems.

The device implements standard three-state bus interface behavior: /WE controls write strobe polarity, while /CE enables full chip operation and /OE gates output drivers independently. No internal refresh or address multiplexing is required-each of the 262,144 addresses maps directly to one 8-bit word location.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory size	2 Mbit (256K × 8): supports byte-accessed data storage without bit-slicing or external demux.
Access time	45 ns max at V_CC = 3.3 V ± 0.3 V: ensures compatibility with 22 MHz bus timing in legacy microcontroller interfaces.
Supply voltage	3.3 V ± 0.3 V: matches standard LVTTL and LVCMOS I/O domains without level-shifting.
Standby current	1 µA max at T_A = 85°C: enables ultra-low-power retention in battery-backed systems.
Operating temperature	–40°C to +85°C: qualified for industrial automation and transportation control environments.
Package	48-pin TSOP II (300 mil): surface-mount compatible with standard reflow profiles and PCB layout constraints.

Pinout & Package

Package: 48-pin Thin Small Outline Package Type II (TSOP II), 300 mil body width, JEDEC MO-141AC compliant, lead-free and RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
A0–A17	Address inputs	18-bit address bus supporting full 256K-word decoding; no multiplexing required.
I/O0–I/O7	Bi-directional data bus	True 8-bit parallel interface; high-impedance state when /CE and /OE inactive.
/CE	Chip enable	Active-low global enable; places device in standby when high, overriding /WE and /OE.
/OE	Output enable	Active-low control for output drivers only; allows read operations without disabling chip.
/WE	Write enable	Active-low signal initiating write cycle; latches data on falling edge with address stable.
V_CC, V_SS	Power and ground	Dual V_CC/V_SS pairs reduce noise coupling between core and I/O sections.

Key Features

Feature	Design Value
Automatic power-down	Enters 1 µA standby when /CE is deasserted-no external control logic needed for low-power sleep states.
TTL-compatible interface	Input thresholds and output drive levels match standard 3.3 V LVTTL, eliminating level translators in mixed-voltage systems.
High-speed asynchronous operation	45 ns access time enables direct connection to 8051, ARM7, or FPGA-based controllers without wait-state insertion.
Industrial temperature rating	Validated operation across –40°C to +85°C ensures reliability in uncontrolled enclosures and mobile equipment.

Applications

Networking Equipment Buffer

Industrial PLC Data Cache

Use Scenario: Storing packet headers and temporary frame metadata in Ethernet switch ASIC companion memory.

IC Role / Device Role / Timing Role: Asynchronous parallel SRAM providing zero-wait-state read/write access for line-rate buffering.

Use Value: 45 ns access time aligns with 22 MHz MAC interface clocks; low standby current extends uptime during idle periods.

Use Scenario: Holding runtime variables, ladder logic state, and I/O image in programmable logic controller mainboard.

IC Role / Device Role / Timing Role: Byte-addressable volatile memory mapped into microcontroller's external bus space.

Use Value: Industrial temperature range ensures deterministic operation in factory-floor cabinets without forced cooling.

Medical Diagnostic Instrument RAM

Automotive ADAS Sensor Preprocessing Buffer

Use Scenario: Capturing real-time waveform samples from analog front-end ADCs before DSP processing in portable ultrasound units.

IC Role / Device Role / Timing Role: High-reliability SRAM acting as first-stage acquisition buffer with deterministic latency.

Use Value: TTL-compatible signaling simplifies integration with legacy 8-bit/16-bit microcontrollers common in cost-sensitive medical devices.

Use Scenario: Temporarily storing raw camera or radar sensor frames prior to compression or feature extraction in domain controllers.

IC Role / Device Role / Timing Role: Low-power parallel memory enabling burst capture during vehicle ignition-on periods.

Use Value: 1 µA max standby current minimizes parasitic drain on 12 V battery during vehicle sleep modes.

Equivalent & Alternatives

The following parts are listed as comparable options for similar asynchronous SRAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ISSI IS61LV25616AL-10TLI	256K × 16 organization, 10 ns access, 3.3 V supply	Wider data bus reduces address cycles per transfer but requires 16-bit host interface	Select when system bus width is 16-bit and faster access is prioritized over power savings
ON Semiconductor MC14LC512P	64K × 8, 120 ns access, 5 V supply, through-hole DIP-28	Slower speed, higher voltage, legacy package limits modern SMT production use	Consider only for repair or legacy board rework where footprint and voltage match existing design

Compared with IS61LV25616AL-10TLI and MC14LC512P, CY62147EV30LL-45BVXA offers optimal balance of byte-width compatibility, industrial temperature tolerance, and ultra-low standby current-making it preferred for new designs targeting compact, battery-aware, or thermally constrained embedded systems.

Availability

CY62147EV30LL-45BVXA is available at Aetrix Electronics and suitable for networking equipment buffers, industrial PLC data caches, and medical diagnostic instrument RAM requiring stable component supply across extended product lifecycles.

Supply support for CY62147EV30LL-45BVXA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, security solutions, and memory products, with global R&D and manufacturing infrastructure.

CY62147EV30LL-45BVXA belongs to Infineon's legacy Cypress SRAM portfolio, designed specifically for industrial and communications applications demanding reliable, low-power, parallel-interface static memory with long-term supply assurance.

FAQ

Is CY62147EV30LL-45BVXA pin-compatible with CY62147EV30LL-55BVXA?

Yes-both share identical 48-pin TSOP II pinout and signal assignments. The only difference is access time: 45 ns vs. 55 ns. Systems designed for the slower variant will operate reliably with the 45 ns part, but timing margins must be verified if operating near maximum bus frequency.

Does this SRAM require an external clock or refresh circuitry?

No-CY62147EV30LL-45BVXA is a fully asynchronous SRAM. It has no clock input and does not require periodic refresh. Data retention depends solely on continuous V_CC supply; no external timing control logic is needed for basic read/write operation.

Can /CE and /OE be tied together for simplified control?

Yes-tying /CE and /OE together enables basic read-only operation with single control signal, but disables independent chip enable and output gating. This configuration forfeits low-power standby capability during reads and prevents shared-bus arbitration in multi-device systems.

What is the maximum data retention time when V_CC is removed?

Data retention is not guaranteed once V_CC drops below 1.5 V. The device is not non-volatile-it loses all stored data within microseconds after power loss. For persistent storage, external battery backup or NVSRAM/NOR flash must be used in conjunction.

CY62147EV30LL-45BVXA Specifications

Product attributes: Attribute value

Manufacturer:: Cypress Semiconductor Corp

Series:: MOBL™

Package/Case:: 48-VFBGA

Packaging:: Bulk

Product Status:: Active

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Asynchronous

Memory Size:: 4Mbit

Memory Organization:: 256K x 16

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 45ns

Access Time:: 45 ns

Voltage - Supply:: 2.2V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-VFBGA (6x8)

CY62147EV30LL-45BVXA FAQ

1.How can I place an order for CY62147EV30LL-45BVXA through Aetrix?

Please submit a Request for Quotation (RFQ) for CY62147EV30LL-45BVXA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for CY62147EV30LL-45BVXA reliable?

The price and inventory of CY62147EV30LL-45BVXA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY62147EV30LL-45BVXA is usually 5 days.

3.What payment methods are accepted for CY62147EV30LL-45BVXA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY62147EV30LL-45BVXA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY62147EV30LL-45BVXA?

CY62147EV30LL-45BVXA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY62147EV30LL-45BVXA order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for CY62147EV30LL-45BVXA?

For technical support, including CY62147EV30LL-45BVXA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY62147EV30LL-45BVXA requirements.

6.How does Aetrix verify that CY62147EV30LL-45BVXA is sourced from the original manufacturer or authorized distributors?

All CY62147EV30LL-45BVXA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY62147EV30LL-45BVXA meets industry standards.

7.What is the process for return or replacement of CY62147EV30LL-45BVXA?

All CY62147EV30LL-45BVXA units undergo pre-shipment inspection (PSI). If there is an issue with CY62147EV30LL-45BVXA, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The CY62147EV30LL-45BVXA part is unused and in its original packaging.

Return procedure for CY62147EV30LL-45BVXA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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